diff mbox series

[4.19.y-cip,12/40] media: dt-bindings: media: i2c: Add IMX219 CMOS sensor binding

Message ID 20210309163656.20944-13-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive)
State Accepted
Delegated to: Nobuhiro Iwamatsu
Headers show
Series Renesas RZ/G2{E,H,M,N} add VIN, CSI2 support | expand

Commit Message

Lad Prabhakar March 9, 2021, 4:36 p.m. UTC
From: Andrey Konovalov <andrey.konovalov@linaro.org>

commit 9d730f2cf4c0391785855dd231577d2de2594df9 upstream.

Add YAML device tree binding for IMX219 CMOS image sensor, and
the relevant MAINTAINERS entries.

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
[PL: manually applied changes to MAINTAINERS file]
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../devicetree/bindings/media/i2c/imx219.yaml | 114 ++++++++++++++++++
 MAINTAINERS                                   |   8 ++
 2 files changed, 122 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/imx219.yaml

Comments

Pavel Machek March 9, 2021, 6:52 p.m. UTC | #1
Hi!

> From: Andrey Konovalov <andrey.konovalov@linaro.org>
> 
> commit 9d730f2cf4c0391785855dd231577d2de2594df9 upstream.
> 
> Add YAML device tree binding for IMX219 CMOS image sensor, and
> the relevant MAINTAINERS entries.

> +title: Sony 1/4.0-Inch 8Mpixel CMOS Digital Image Sensor
> +
> +maintainers:
> +  - Dave Stevenson <dave.stevenson@raspberrypi.com>
> +
> +description: |-
> +  The Sony imx219 is a 1/4.0-inch CMOS active pixel digital image sensor

I assume it is 0.25 inch sensor? 1/4 inch or 0.25 inch would be
understandable, but 1/4.0 is kind of strange.


> +        imx219: sensor@10 {
> +            compatible = "sony,imx219";
> +            reg = <0x10>;
> +            clocks = <&imx219_clk>;
> +            VANA-supply = <&imx219_vana>;   /* 2.8v */
> +            VDIG-supply = <&imx219_vdig>;   /* 1.8v */
> +            VDDL-supply = <&imx219_vddl>;   /* 1.2v */

"V" should be uppercase in voltages.

Best regards,
								Pavel
Lad Prabhakar March 10, 2021, 8:48 a.m. UTC | #2
Hi Pavel,

Thank you for the review.

> -----Original Message-----
> From: Pavel Machek <pavel@denx.de>
> Sent: 09 March 2021 18:52
> To: Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Cc: cip-dev@lists.cip-project.org; Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>; Pavel Machek
> <pavel@denx.de>; Biju Das <biju.das.jz@bp.renesas.com>
> Subject: Re: [PATCH 4.19.y-cip 12/40] media: dt-bindings: media: i2c: Add IMX219 CMOS sensor binding
> 
> Hi!
> 
> > From: Andrey Konovalov <andrey.konovalov@linaro.org>
> >
> > commit 9d730f2cf4c0391785855dd231577d2de2594df9 upstream.
> >
> > Add YAML device tree binding for IMX219 CMOS image sensor, and
> > the relevant MAINTAINERS entries.
> 
> > +title: Sony 1/4.0-Inch 8Mpixel CMOS Digital Image Sensor
> > +
> > +maintainers:
> > +  - Dave Stevenson <dave.stevenson@raspberrypi.com>
> > +
> > +description: |-
> > +  The Sony imx219 is a 1/4.0-inch CMOS active pixel digital image sensor
> 
> I assume it is 0.25 inch sensor? 1/4 inch or 0.25 inch would be
> understandable, but 1/4.0 is kind of strange.
> 
Agree with you here, but looking at the document [1] its referred the same way "1/4.0".

[1] http://www.opensourceinstruments.com/Electronics/Data/IMX219PQ.pdf

Cheers,
Prabhakar
> 
> > +        imx219: sensor@10 {
> > +            compatible = "sony,imx219";
> > +            reg = <0x10>;
> > +            clocks = <&imx219_clk>;
> > +            VANA-supply = <&imx219_vana>;   /* 2.8v */
> > +            VDIG-supply = <&imx219_vdig>;   /* 1.8v */
> > +            VDDL-supply = <&imx219_vddl>;   /* 1.2v */
> 
> "V" should be uppercase in voltages.
> 
> Best regards,
> 								Pavel
> 
> --
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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Pavel Machek March 10, 2021, 9:38 a.m. UTC | #3
Hi!

> > > +description: |-
> > > +  The Sony imx219 is a 1/4.0-inch CMOS active pixel digital image sensor
> > 
> > I assume it is 0.25 inch sensor? 1/4 inch or 0.25 inch would be
> > understandable, but 1/4.0 is kind of strange.
> > 
> Agree with you here, but looking at the document [1] its referred the same way "1/4.0".
> 
> [1] http://www.opensourceinstruments.com/Electronics/Data/IMX219PQ.pdf

It is refered as "Type 1/4.0" and I'm not really sure what it means.

1/4 inch is 6.35mm, but document states it is 4.6mm.

https://www.photoreview.com.au/tips/buying/unravelling-sensor-sizes/
explains this system, but they use 1/4", not 1/4.0, and it translates
that to 4.5mm.

I guess easiest way is to say it is "4.8mm CMOS active pixel digital
image sensor" and forget about confusing inch values.

Best regards,
								Pavel
Lad Prabhakar March 10, 2021, 10:24 a.m. UTC | #4
Hi Pavel,

> -----Original Message-----
> From: Pavel Machek <pavel@denx.de>
> Sent: 10 March 2021 09:39
> To: Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Cc: Pavel Machek <pavel@denx.de>; cip-dev@lists.cip-project.org; Nobuhiro Iwamatsu
> <nobuhiro1.iwamatsu@toshiba.co.jp>; Biju Das <biju.das.jz@bp.renesas.com>
> Subject: Re: [PATCH 4.19.y-cip 12/40] media: dt-bindings: media: i2c: Add IMX219 CMOS sensor binding
> 
> Hi!
> 
> > > > +description: |-
> > > > +  The Sony imx219 is a 1/4.0-inch CMOS active pixel digital image sensor
> > >
> > > I assume it is 0.25 inch sensor? 1/4 inch or 0.25 inch would be
> > > understandable, but 1/4.0 is kind of strange.
> > >
> > Agree with you here, but looking at the document [1] its referred the same way "1/4.0".
> >
> > [1] http://www.opensourceinstruments.com/Electronics/Data/IMX219PQ.pdf
> 
> It is refered as "Type 1/4.0" and I'm not really sure what it means.
> 
> 1/4 inch is 6.35mm, but document states it is 4.6mm.
> 
> https://www.photoreview.com.au/tips/buying/unravelling-sensor-sizes/
>
Thanks for the pointer.

> explains this system, but they use 1/4", not 1/4.0, and it translates
> that to 4.5mm.
> 
> I guess easiest way is to say it is "4.8mm CMOS active pixel digital
> image sensor" and forget about confusing inch values.
> 
Totally agree with you (^^4.5mm).

Cheers,
Prabhakar

> Best regards,
> 								Pavel
> --
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/i2c/imx219.yaml b/Documentation/devicetree/bindings/media/i2c/imx219.yaml
new file mode 100644
index 000000000000..32d6b693274f
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/imx219.yaml
@@ -0,0 +1,114 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/imx219.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sony 1/4.0-Inch 8Mpixel CMOS Digital Image Sensor
+
+maintainers:
+  - Dave Stevenson <dave.stevenson@raspberrypi.com>
+
+description: |-
+  The Sony imx219 is a 1/4.0-inch CMOS active pixel digital image sensor
+  with an active array size of 3280H x 2464V. It is programmable through
+  I2C interface. The I2C address is fixed to 0x10 as per sensor data sheet.
+  Image data is sent through MIPI CSI-2, which is configured as either 2 or
+  4 data lanes.
+
+properties:
+  compatible:
+    const: sony,imx219
+
+  reg:
+    description: I2C device address
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  VDIG-supply:
+    description:
+      Digital I/O voltage supply, 1.8 volts
+
+  VANA-supply:
+    description:
+      Analog voltage supply, 2.8 volts
+
+  VDDL-supply:
+    description:
+      Digital core voltage supply, 1.2 volts
+
+  reset-gpios:
+    description: |-
+      Reference to the GPIO connected to the xclr pin, if any.
+      Must be released (set high) after all supplies are applied.
+
+  # See ../video-interfaces.txt for more details
+  port:
+    type: object
+    properties:
+      endpoint:
+        type: object
+        properties:
+          data-lanes:
+            description: |-
+              The sensor supports either two-lane, or four-lane operation.
+              If this property is omitted four-lane operation is assumed.
+              For two-lane operation the property must be set to <1 2>.
+            items:
+              - const: 1
+              - const: 2
+
+          clock-noncontinuous:
+            type: boolean
+            description: |-
+              MIPI CSI-2 clock is non-continuous if this property is present,
+              otherwise it's continuous.
+
+          link-frequencies:
+            allOf:
+              - $ref: /schemas/types.yaml#/definitions/uint64-array
+            description:
+              Allowed data bus frequencies.
+
+        required:
+          - link-frequencies
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - VANA-supply
+  - VDIG-supply
+  - VDDL-supply
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        imx219: sensor@10 {
+            compatible = "sony,imx219";
+            reg = <0x10>;
+            clocks = <&imx219_clk>;
+            VANA-supply = <&imx219_vana>;   /* 2.8v */
+            VDIG-supply = <&imx219_vdig>;   /* 1.8v */
+            VDDL-supply = <&imx219_vddl>;   /* 1.2v */
+
+            port {
+                imx219_0: endpoint {
+                    remote-endpoint = <&csi1_ep>;
+                    data-lanes = <1 2>;
+                    clock-noncontinuous;
+                    link-frequencies = /bits/ 64 <456000000>;
+                };
+            };
+        };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 1061db6fbc32..47986d4b599a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13565,6 +13565,14 @@  S:	Maintained
 F:	drivers/ssb/
 F:	include/linux/ssb/
 
+SONY IMX219 SENSOR DRIVER
+M:	Dave Stevenson <dave.stevenson@raspberrypi.com>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Maintained
+F:	drivers/media/i2c/imx219.c
+F:	Documentation/devicetree/bindings/media/i2c/imx219.yaml
+
 SONY IMX258 SENSOR DRIVER
 M:	Sakari Ailus <sakari.ailus@linux.intel.com>
 L:	linux-media@vger.kernel.org